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Disparida

Disparida is an parvclass of extinct marine animals in the class Crinoidea. Disparids are a speciose and morphologically diverse group of crinoids distinguished by their monocyclic calyx and slender arms without pinnules. They range from the Early Ordovician (Tremadocian) to Middle Permian, reaching their highest diversity during the Late Ordovician.

List of families and genera
Disparida classification is undergoing revision. Many proposed families are paraphyletic or polyphyletic. Family AcolocrinidaeAcolocrinusParacolocrinus Family AllagecrinidaeAllagecrinusIsoallagecrinusKallimorphocrinusLitocrinusMetallagecrinusWrightocrinus Family AlphacrinidaeAlphacrinus Family AnamesocrinidaeAnamesocrinus Family AnomalocrinidaeAnomalocrinusGeraocrinus Family AptocrinidaeOthneiocrinus Family AthenacrinidaeAthenacrinus Family BelemnocrinidaeBelemnocrinusWhiteocrinus Family CalceocrinidaeAnulocrinusCalceocrinusCatatonocrinusCharactocrinusChirocrinusChiropinnaCorvucrinusCremacrinusCunctocrinusDarraghcrinusDeltacrinusDiaphorocrinusDolerocrinusEohalysiocrinusEpihalysiocrinusEspanocrinusGrypocrinusHalysiocrinusMinicrinusParacremacrinusSenariocrinusStibarocrinusSynchirocrinusTrypherocrinus Family CatillocrinidaeAllocatillocrinusCatillocrinusEucatillocrinusKolvacrinusIsocatillocrinusMetacatillocrinusMycocrinusNeocatillocrinusNotiocatillocrinusParacatillocrinusTaucatillocrinusUfacrinusXenocatillocrinus Family Cincinnaticrinidae (i.e. Heterocrinidae, paraphyletic / polyphyletic) • AtyphocrinusCincinnaticrinusDoliocrinusDystactocrinusGlaucocrinusHeterocrinusIsotomocrinusOhiocrinusSerendipocrinusTenuicrinusTryssocrinus Family ColumbicrinidaeColumbicrinusPraecursoricrinus Family DulkumocrinidaeDulkumocrinus Family EustenocrinidaeCataractocrinusCoralcrinusEustenocrinusInyocrinusPeniculocrinusPogonipocrinusVirucrinus Family HaplocrinitidaeHaplocrinites Family Homocrinidae (paraphyletic / polyphyletic) • ApodasmocrinusBodacrinusCataraquicrinusDaedalocrinusDifficilicrinusDrymocrinusEctenocrinusHomocrinusIbexocrinusKastorcrinusPenicillicrinusSygcaulocrinusTunguskocrinus Family Iocrinidae (paraphyletic) • CaleidocrinusGrammocrinusIocrinusMargoiocrinusMuicrinusPariocrinusPeltacrinusRistnacrinusSchaldichocrinusTornatilicrinusWestheadocrinus Family MaennilicrinidaeHeviacrinusMaennilicrinusPutilovocrinusVosekocrinus Family MyelodactylidaeBrachiocrinusCrinobrachiatusEomyelodactylusHerpetocrinusMusicrinusMyelodactylus Family PisocrinidaeCicerocrinusEocicerocrinusParapisocrinusPisocrinusPlayfordicrinusTriacrinusTrichocrinus Family Pygmaeocrinidae (polyphyletic) • KroppocrinusPygmaeocrinusStorthingocrinus Family SynbathocrinidaeAbyssocrinusPhimocrinusRamacrinusStylocrinusSynbathocrinusTaidocrinusTheloreus Family TetragonocrinidaeRamseyocrinusTetragonocrinus Family ZophocrinidaeParazophocrinusTiaracrinusZophocrinus Incertae sedisAgostocrinus? • AureocrinusBrutopisocrinusCalcycanthocrinusChanginocrinusClaviculacrinusDesmacriocrinusGongrocrinusHeracrinusHolynocrinusHypsocrinusJaekelicrinusJunocrinusMacnamaratylusParadoxocrinusPerissocrinusPerittocrinus? • QuiniocrinusRegnellicrinusResetocrinusStereobrachicrinusTetracionocrinus? • ThaminocrinusTrophocrinusXisoallegocrinus == References ==
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